X-ray Computed Tomography Analysis of Ferromanganese Nodule Nuclei from the Western North Pacific Ocean: Insights into Their Origins

Ferromanganese nodule nuclei are considered crucial to the formation and distribution of nodules. However, because it is difficult and time-consuming to study ferromanganese nodule nuclei, few studies have been performed, despite the large number of samples. Here, we analyzed the nuclei of 934 ferro...

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Veröffentlicht in:	Minerals (Basel) 2023-06, Vol.13 (6), p.710
Hauptverfasser:	Terauchi, Daiki, Shimomura, Ryo, Machida, Shiki, Yasukawa, Kazutaka, Nakamura, Kentaro, Kato, Yasuhiro
Format:	Artikel
Sprache:	eng
Schlagworte:	Abyssal zone Apatite Chemical composition Computed tomography Copper CT imaging Distribution Ferromanganese Ferromanganese nodules Fish Fluorescence Fluorescence in situ hybridization Ironstone Nickel Nodules Nuclei Nucleus Ocean Ocean floor Phosphorite Sample size Scanners Seamounts Sediment Sediments Teeth Tomography Volcanic ash, tuff, etc Volcanic rocks X ray absorption X rays X-ray fluorescence X-ray spectroscopy
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Zusammenfassung:	Ferromanganese nodule nuclei are considered crucial to the formation and distribution of nodules. However, because it is difficult and time-consuming to study ferromanganese nodule nuclei, few studies have been performed, despite the large number of samples. Here, we analyzed the nuclei of 934 ferromanganese nodules from the abyssal seafloor around Minamitorishima Island (western North Pacific Ocean) using X-ray computed tomography (CT). Based on the CT number distribution (describing X-ray absorption in Hounsfield units, HU), we classified the nuclei as Type I (>1800 HU) or Type II (
ISSN:	2075-163X 2075-163X
DOI:	10.3390/min13060710